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Earnings Per Share - Summary of Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Earnings attributable to BHP shareholders
Continuing operations	$ 12,921	$ 20,245	$ 11,529
Total	$ 12,921	$ 30,900	$ 11,304
Weighted average number of shares
Basic	5,064	5,061	5,057
Diluted	5,073	5,071	5,068
Basic earnings per ordinary share
Continuing operations	$ 2.552	$ 4	$ 2.28
Total	2.552	6.106	2.235
Diluted earnings per ordinary share
Continuing operations	2.547	3.992	2.275
Total	2.547	6.093	2.23
Headline earnings per ordinary share (US cents)
Basic	2.561	4.39	2.848
Diluted	$ 2.557	$ 4.381	$ 2.842

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The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

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The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator).

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